Arrester



J. E. STARNES.

SPARK ARRESTER. APPLICATION FILED AuG.I5. |917. IIEIIEwED IAN. 25. I9I9.

,3 1 2,76 1 Patented Aug. 12, 19.19.

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J l E. STHRNE Y To all whom t may concern.'

, UNITED STATES PATENT ormon. f

JOSEPH E. STARNES, OF LIVE OAK, FLORIDA.

SPARK-Aannemers.

Specification of Letters Patent.

Patented nllgg-12, 1919.

Application filed August ,15, 1917, Serial No. 186,400. Renewed January 25, 1919. 'Serial VNo.973,1773.

Be it known that I, JOSEPH E. STARNES, a citizen of the United States, residing at Live Oak, in the county of Suwanee and State of Florida, have invented certain newand useful Improvements in Spark-Arresters, of which the following is a specification, reference being had to the accompanying drawings.y

This, invention relates to certain improve-V ments Vin spark arresters and hasrelation more particularly to a device of this general character especially designed and adapted for use in connection with wood fuel, and it is an ,object of the invention to provide a novel and improved device of this general character including a horizontally disposed perforate partition intersecting the smoke box together with a tubular perforatemember arranged within the stack or ue and wherein said member is substantially in the form of a truncated cone.

The invention alsoy has for an object to provide a device ofgthis general character wherein the perforate member within the stack can be adjusted thereby to Jfacilitate the discharge ofsmoke at the starting of the i'ire and also wherein the horizontal partition is provided with a hinged portion adapted'to be opened at the starting of the fire to facilitate the; dicharge of Vthe prod-'- ucts of combustion. Y ,c

The invention consistsL in the details wof construction and in the combination and arrangement Vof the several parts ofmy improved spark arrester wherein certain 1mportant advantages are attained and the del vice rendered simpler, less expensive and otherwiseV more convenientv andv advantageous for use, as will be hereinafter more fully set forth. v

The novel features of myv invention will hereinafter be definitely'claimed. f

In order that my invention may be'the better understood I will now proceed to describe the same with reference to'theaccompanying drawings wherein, i

Figure 1 is a fragmentary view in elevation illustrating an engineboiler together with manual means .for imparting movement -to my improved spark arrester. as herein embodied; n

Fig; 2 isan enlarged fragmentary sec- As herein disclosed Bdenotes a boiler'of l any preferred type -provided at its forward end with a smoke boXS having in communication therewith the upstanding flue or stack F. l denotes a draft sheet'carried by the flue sheet 2 4and extending vwithin ythe smoke boX S. Suitably secured to the draft sheet 1 and to the front and side walls ofthe smoke boX S is a perforate partition P pref-l Y erabl'y vformed of reticulated fabric of a predetermined mesh. It is also to be noted that the partition Pis positioned slightly below thek eXitnozzle N for creating the requisite draft in a manner andr for a purpose believed to be clearly apparent torthose skilled in the art to which my yinvention pertains.V The partition P is provided with al transversely disposedhinged section. 3 preferably positionedin advance of the nozzle N and which is adapted to be adjusted verticallyintoean open position at the starting of a fire to facilitate the escape of the products of combustion.v At' this time" it may be well to',v state that my invention -as herein embodied is particularly well adapted for `use in .connection with -wood as afuel. After the fire has started the Section 3 Iis shut into a closed position and itwill beV self evident that theheavy particles oresparks will Vbe arrested by the partition P'. Y

v It hasY also been found of futmost` importance in practice .to apply withinvthe flue or stack F a perforatezmembe'r M lformed preferably of reticulated materialfof predetermined mesh and which member istubuf lar with its opposite ends open andsubstantially inthe form of a truncated cone with sparksor particles to pass, through the Vpartij tion P toward the sides of the Hue or stack F and said finer sparks or particles are prevented from escaping through the upper end of the Hue or stack F by the member M. Intersecting the smoke box S is a horizontal shaft 4 disposed transversely thereof and which is provided with the oppositely directed rock arms 5 and 6. Pivotally engaged with the free end portion of the inwardly directed rock arm 5 is the lower end portion of the vertically disposed rod 7 extending upwardly through the Hue or stack F and secured as at 8 to the lower end portion of the member M. Co-actino with the member M and the rod 7 is the brace rod 9. The outer or free end portion of the forwardly directed rock arm 6 has pivotally engaged therewith the rod 10 which is also operatively engaged with the outer or free margin of the pivoted section 3 of the partition B. In view of the 'foregoing it will be at once self evident that when the shaft 4 is rocked to swing the section 3 downwardly into an open position the rod 7 will be moved upwardly to raise the member M free of the Hue or stack F so that the products of combustion may have free egress from within the smoke box S. Upon re'- verse movement of the shaft 4 the section 3 will be returned to closed position and the member M lowered into applied position within the Hue or stack F. Requisite rocking movement will be imparted to the shaft 4 when desired but it is preferred that a portion of the shaft 4 extend exteriorly of the smoke box S and be provided with the upstanding rock arm 11 having pivotally engaged therewith a rod 12 extending rearwardly of the boiler and operatively engaged with the lever 14 of a conventional type.

In the form of my invention as particularly illustrated in Fig. 4 the lhinged section 3 and the member M are caused'to intermittently open and close during the operation of the locomotive and as is particularly illustrated in Fig. 4 the rock arm11a has operatively engaged therewith the rod 15 pivotally engaged with the .piston rod 16 extending within the cylinder C and coact ing with the piston 17 arranged for reciprocatory movement within the cylinder C. The cylinder C is suitably supported exteriorly of the smoke box S. In communication with the interior of the cylinder C through the head thereof remote from the rod 16 is a steam line 18 leading from the steam chest 19V and the steam is emitted into and exhausted from the cylinder C through the chest 19 under the inHuence of the conventional relief (not shown) coacting within the valve 20. The piston 17 is retracted under the influence of the expansible member 21 interposed between the piston 17 and the head of the cylinder remote from the line 18. As particularly illustrated in Fig. 4 the expaiisible member 21 comprises a. conventional coil spring surrounding the rod 16.

Depending from the upper marginal portion of the member M are the arms or fingers 22 which contact with the inner wall of the Hue F and serve as guides for the member M. It is to be understood that the arms or fingers 22 are of a length greater than the extent vof movement of rthe member M so that said arms or fingers are at all times in operative engagement with the Hue F.

YFrom the foregoing description, it is thought to be obvious that a spark arrestei constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated and it will also be obvious that my invention is susceptible of some change and modification without materially departing from the appearance and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim:

l. In combination with a smoke box having a Hue in communication therewith, a perforate partition intersecting the smoke box and provided with a swinging section, a tubular member in the forni of an inverted truncated cone extending within the outer end portion of the stack and having its opposite ends open, the walls of said member perforate tubular member extending within Y the stack through the outer end thereof, said tubular member being in the form of an inverted truncated cone, means for imparting movement to the tubular member longitudinally of the stack, and elongated arms depending from the upper portion of the tubular member and frictionally engaging the inner wall of the stack to afford guiding means for the member in its movements,

said arms being independentof the means for moving the member.

4. In comb-ination with a smoke box having a Hue in communication therewith, a tubular member extending within said Hue and in the form of an inverted truncated cone, means for imparting movement to said member longitudinally of the Hue, and arms depending from the outer marginal portion of the member and having sliding contact with the inner wall 0f the Hue to afford guiding means for the member in its movement, said arms being independent of the means for moving the member.

5. In combination with a smoke stack having a Hue in communication therewith, a perforate tubular member extending within the Hue through the outer end thereof, said Hue being in the form of an inverted truncated cone and open at opposite ends, a rod engaged with the inner end of the tubular member and extending through the stack into the smoke box, a shaft intersecting the smoke box, and extending exteriorly thereof, a rock arm carried by the shaft and operatively connected with the lower end of the rod, and means coacting with the extended portion of the shaft for rocking the same to move the tubular member longitudinally of the Hue.

6. In combination with a smoke stack having a Hue in communication therewith, a perforate tubular member extending within the Hue through the outer end thereof, said Hue being in the form of an inverted truncated cone and open at opposite ends, a rod engaged with the inner end of the tubular member and extending through the stack into the smoke box, a shaft intersecting the smoke box, and extending exteriorly thereof, a rock arm carried by the shaft and operatively connected with thelower end of the rod, and expansion means coacting with the extended portion of the shaft for intermittently rocking the same for moving the tubular member toward and from the outer end of the Hue.

7. In combination with a smoke box and a steam chest of an engine, a tubular member extending within said Hue and in the form of an vinverted truncated cone, a rock shaft, an operative connection between the rock shaft and the member for moving said member longitudinally of the Hue, a Vpiston with-V in the cylinder and' operatively connected with the rock shaft, and a communication between the steam chest and the cylinder for imparting movement to the piston.

8. In combination with a smoke box and a steam chest of an engine, a tubular member extending within said Hue and in the form of an inverted truncated cone, a rock shaft, an operative connection between the rock shaft and the member for moving said member longitudinally ofthe Hue, aV piston within the cylinder and operatively connected with the rock shaft, a communication between the steam chest and the cylinder for imparting movement Vto the piston in one direction, and automatic means for imparting movement to the piston in the opposite direction.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JOSEPH E. STARNES.

Witnesses:

C. P. DIoxnR'r, T. J. PARNELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, ID. G. 

